Production of ammonia



"a citizen ol' the United States,

JOHN coLL-ms'cLAnoY, or NIAGARA rALLanEW YORK, Assiaroa ire-@1 3 N can CORPORATION, OF raovmnnca, nnoion ISLAND, A coaroanrron oranon]:

ZSLAND.

, PRODUCTION'OF AMMONIA.

Specification of Letters Patent.

Patented Sept. 7,1920.

no. Drawing. Original application filed March -23, 1916, Serial No. 86,078. Divided and this application filed January 14, 1920. Serial No. 351,362.

To all whom it may concern: 7

'Be it known that I, JOHN COLLINS CLANCY, residing at Niagara Falls, in the county of Niagara and State of New York, have invented certain new and useful Improvements in theProduction of Ammonia, of which thefollowmg-is s a specification.

' agents therefor,

- This invention relates to the process ofproducing ammonia from its elements through the agency of cyanamids as catalytic which process is particu.- larly described and pointed out in the following specification and claims. 1

I have discovered that if a ga'seousmixture containing nitrogen and hydrogen is passed in contact with a suitable metal cyanamid or mixture of such cyanamids, the

' nitrogen and hydrogen of said gaseous mixture may be caused to unite to form ammoma; said .cyanamid or cyanamids acting catalytically in the reaction. For example, calcium cyanamid, or potasslum cyanamid, or sodium cyanamid answers well the purpose of the process; and when another suitable metal cyanamid', such as one of those hereinafter referred to, is mixed with the first, the production of ammonia I ture obviously may be caused to take placs at a lower temperature; While the veloclty of ammonia production is accelerated.

The number of said cyanamids in the mixneed not be limited to two.:

T hus, byway of illustration:

A mixture composed pf manganese cyanamid, cobalt cyanamid and sodium cyanamid may constitute the catalytic agent, such agent being prepared" by using the following proportions, by weight: sodium cyanamid 100 "support for the catalytic agent.

0 anamid 10. arts. "The whole mixture is t en intimate y mixed with "80 granular charcoal; the charcoal actin as a ith' a catalytic agent so prepared, nitrogen and'hy drogen may be made'to combine with the production of ammonia at a temperature of proximating 600 total gas leaving the heated nitrogen parts of I tween heated nitrogen and hydrogen to syncurrent preferably containing one volume Qff nitrogen and three volumes of hydrogen.

With a pressure of gas traversing" the I arange of 25 to- 100 atmoschamberwithin pheres and at a tem erature of treatment ap- 5 I. have obtained synthetic ammonia to the extent that the ammonia gas leaving the treating chamber con:

stituted up to 10 per cent. by volume of the percentage vary ng upon varying the pressure.

nor to the proportreating chamber; this The ammonia is removed from the gas V dischargedfrom the treating chamber in any 7 suitable manner.

. The present case is a division of my application entitled; Production of ammonia;

Serial No. 86,078, filed March 23, 1916.

Having thus described my invention, What I claim is: 1. The process of producing ammonia which comprises effecting a reaction between and hydrogen to synthetically yield said ammonia by passing a gaseous mixture-containing said nitrogen and hydrogen undera high pressure in contact with a catalytic composition an active con stituent of which is parts; manganese cyanamid 10 parts; cobalt a cyanogen compound having' potassiumpresent in the basetnereof.- .2. he process of producing ammonia comprises effecting a reaction be which thetic'ally yield saidammonia by passing a gaseous mixture containing sai d"nitrogen and hydrogen under a high pressure in contact with a catalytic composition an active v y 0 u v I c I v o constituent oi wlnch 1s a, cyanznnnl havlng potassium present 1n the base thereof.

3. The process of producing ammonia,

- which comprises effecting a reaction between heated nitrogen'and hydrogen to synthetically yield said ammonia by passing a gaseous mixture containing said nitrogen and hydrogen under at high pressure 1n contact with a catalytic compositlon 'wh1ch includes a plurulity'oi' co-zicting nictuls, one of which 10 

